There are 5 wild biomes, each with 4 unique Dragon species. Starting from the top of your map and going clockwise, the map locations are:
1. Misty Mountain, home of the Sky Dragons
2. Snow Valley, home of the Ice Dragons
3. Enchanted Forest, home of the Grass dragons
4. Fire Island, home of the Lava Dragons
5. Dolphin Bay, home of the Water Dragons
In the middle of the map is the Dragon Reserve, your home base.
When you start the game, you'll only be able to travel to the Dragon Reserve or the Enchanted Forest. You can unlock new biomes by reaching new Dragon Scout levels!